39 Questions

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1
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1
5
1
138
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2
76
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4
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50
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3
1
69
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45
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137
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Show that $E_{t}=\left( \mathbf{x}_{t},\mathbf{E}_{1},\mathbf{E}_{2},\mathbf{E}_{3}\right)$ is a first order frame field along $\mathbf{x}_{t}$

Aug 26 at 17:48 Mancala 371

3
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106
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2
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39
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Show $J_{D}^{\prime }\left( X_{t}\right) =\frac{d}{dt}J_{D}\left( X_{t}\right) =\int_{D}\left( -2H_{t}+2H_{0}\right) \lambda _{t}dM$

Nov 7 at 0:33 Mancala 371
1
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0
39
views

Show that $K=-\frac{\Delta \log \lambda }{\lambda ^{2}}$

Sep 22 at 16:49 Mancala 371

2
1
54
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2
1
44
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2
1
54
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2
0
38
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The minimal surfaces immersed in $\mathbb{R}^3$ are of revolution [closed]

May 15 '18 at 0:08 Mancala 371

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2
217
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2
1
212
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1
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2
66
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1
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1
515
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1
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0
51
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Hamilton's Lectures on Quaternions or Elements of Quaternions

Dec 28 '16 at 0:25 Mancala 371
1
1
vote
1
90
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1
vote
1
29
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1
vote
0
38
views

Homogeneous Space of Hyperbolic Space

Aug 21 at 16:48 Mancala 371

1
vote
0
53
views

Help for a clearer solution: $k$-form $\omega$ is smooth if only if it is smooth as a map $\omega \colon M\rightarrow \Lambda ^k(M)$

Jun 13 '18 at 15:05 Mancala 371

1
vote
2
256
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1
1
vote
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101
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1
vote
0
23
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What is the isometric reflection of $M∩A_t$ across $P_t$ in the poincaré model?

Jun 3 '18 at 22:41 Mancala 371
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vote
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64
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1
vote
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33
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1
vote
1